While markets and media were chasing Donald Trump’s tariff fiasco last week, something far more important happened in East Palestine, Ohio. The new head of the US Environmental Protection Agency (EPA), Lee Zeldin, chose the fire station in that tiny village between Pittsburgh and Cleveland to announce that he was "driving a dagger through the heart of climate change religion", as he put it. Zeldin is rolling back 31 environmental rules (Make America Dirty Again?) including the EPA’s 2009 finding that greenhouse gases endanger public health and welfare, which has been the legal basis for all US action against climate...